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300b tube

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    • Matched Pair U.S. Manufactured Western Electric 300B Tube. New in Box. B Stock - Image 1 of 4
    • Matched Pair U.S. Manufactured Western Electric 300B Tube. New in Box. B Stock - Image 2 of 4
    • Matched Pair U.S. Manufactured Western Electric 300B Tube. New in Box. B Stock - Image 3 of 4
    • Matched Pair U.S. Manufactured Western Electric 300B Tube. New in Box. B Stock - Image 4 of 4

    Matched Pair U.S. Manufactured Western Electric 300B Tube. New in Box. B Stock

    Brand new · Western Electric
    £444.44
    or Best Offer
    £30.63 P&P
    91 watching
    ⁣⁣H⁣N⁣⁣⁣ ⁣D⁣F⁣ ⁣⁣⁣⁣⁣⁣5⁣⁣U⁣⁣ ⁣S⁣S⁣ ⁣⁣⁣S⁣⁣⁣
    • Golden Voice GV 300B+ 300B Plus Vacuum Tube Replaces WE300B 300BN 300BT HIFI - Image 1 of 2
    • Golden Voice GV 300B+ 300B Plus Vacuum Tube Replaces WE300B 300BN 300BT HIFI - Image 2 of 2

    Golden Voice GV 300B+ 300B Plus Vacuum Tube Replaces WE300B 300BN 300BT HIFI

    Brand new
    £119.00
    (£59.50/Unit)
    Free postage
    Click & Collect
    U⁣H⁣ ⁣Ѕ⁣p⁣o⁣n⁣3⁣C⁣ ⁣J⁣X⁣ ⁣C⁣2⁣s⁣ ⁣J⁣S⁣o⁣r⁣e⁣ ⁣d⁣H⁣⁣⁣ ⁣
    • CETRON 300B Vacuum Tubes (Matched Pair) - USA - Audiophile Tested NOS Quality - Image 1 of 4
    • CETRON 300B Vacuum Tubes (Matched Pair) - USA - Audiophile Tested NOS Quality - Image 2 of 4
    • CETRON 300B Vacuum Tubes (Matched Pair) - USA - Audiophile Tested NOS Quality - Image 3 of 4
    • CETRON 300B Vacuum Tubes (Matched Pair) - USA - Audiophile Tested NOS Quality - Image 4 of 4

    CETRON 300B Vacuum Tubes (Matched Pair) - USA - Audiophile Tested NOS Quality

    Pre-owned
    £700.28
    or Best Offer
    £3.42 P&P
    18 watching
    ⁣7⁣⁣O⁣⁣ ⁣K⁣F⁣⁣⁣⁣ ⁣Q⁣⁣⁣⁣M⁣ ⁣2⁣V⁣⁣ ⁣⁣⁣⁣N⁣⁣⁣
    • 300B PSVANE LOOKS NEW TESTS 60 - 80% EMISSION USED TUBE VALVE - Image 1 of 2
    • 300B PSVANE LOOKS NEW TESTS 60 - 80% EMISSION USED TUBE VALVE - Image 2 of 2

    300B PSVANE LOOKS NEW TESTS 60 - 80% EMISSION USED TUBE VALVE

    Pre-owned · Philips
    £48.00
    £5.50 P&P
    ⁣S⁣⁣C⁣⁣ ⁣⁣⁣Y⁣Q⁣⁣⁣⁣⁣⁣ ⁣⁣Q⁣8⁣⁣ ⁣A⁣⁣⁣⁣⁣R⁣⁣
  • UX4 valve plug electron tube valve base not socket for 300B 2A3 572B valves - Image 1 of 4

    UX4 valve plug electron tube valve base not socket for 300B 2A3 572B valves

    Brand new
    £6.95
    or Best Offer
    Free postage
    Click & Collect
    Z⁣9⁣ ⁣⁣L⁣3⁣⁣ ⁣⁣⁣⁣L⁣V⁣ ⁣⁣⁣⁣⁣⁣⁣⁣L⁣⁣2⁣⁣⁣⁣ ⁣
  • 300B SHU-GUANG CHINESE MATCHED PAIR USED BUT LOOKS NEW TUBE VALVE - Image 1 of 4

    300B SHU-GUANG CHINESE MATCHED PAIR USED BUT LOOKS NEW TUBE VALVE

    Pre-owned
    £95.00
    £7.50 P&P
    ⁣⁣⁣⁣⁣C⁣⁣M⁣ ⁣⁣N⁣Z⁣ ⁣⁣X⁣T⁣ ⁣⁣I⁣Z⁣ ⁣J⁣Q⁣ ⁣⁣4⁣⁣⁣
  • Matched Pair LINLAI 300B Perfect HIFI Audio Vacuum Tube Amp Classic New Tested - Image 1 of 3

    Matched Pair LINLAI 300B Perfect HIFI Audio Vacuum Tube Amp Classic New Tested

    Brand new
    £120.83
    Was: £127.19was - £127.19
    or Best Offer
    Free postage
    Only 1 left.
    N⁣⁣M⁣⁣⁣ ⁣⁣J⁣4⁣⁣ ⁣⁣⁣⁣⁣⁣O⁣P⁣ ⁣3⁣I⁣⁣ ⁣1⁣⁣⁣⁣⁣
  • Matched Pair 300B New Valve Tubes Gold Class Made By Shuguang China - Image 1 of 1

    Matched Pair 300B New Valve Tubes Gold Class Made By Shuguang China

    £200.00
    £5.75 P&P
    Click & Collect
    69 watching
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  • 300B CHINESE LOOKS NEW BUT TEST AS USED TUBE VALVE. MATCHED PAIRS POSSIBLE - Image 1 of 3

    300B CHINESE LOOKS NEW BUT TEST AS USED TUBE VALVE. MATCHED PAIRS POSSIBLE

    Pre-owned
    £42.50
    £5.50 P&P
    H⁣4⁣ ⁣L⁣⁣⁣⁣9⁣⁣ ⁣⁣Q⁣7⁣ ⁣P⁣⁣T⁣ ⁣X⁣⁣J⁣⁣⁣ ⁣D⁣⁣⁣⁣
  • TAKATSUKI Matched Pair Vacuum Tubes TA−300B Output Amplifier Tubes Made In Japan - Image 1 of 4

    TAKATSUKI Matched Pair Vacuum Tubes TA−300B Output Amplifier Tubes Made In Japan

    Brand new
    £1,206.59
    Free postage
    Only 1 left.
    B⁣⁣M⁣ ⁣⁣⁣1⁣⁣⁣E⁣ ⁣⁣⁣K⁣⁣7⁣ ⁣⁣⁣⁣S⁣⁣⁣D⁣⁣ ⁣⁣⁣
  • 2 Pieces UX4 CERAMIC BASE SKT FOR 300B 2A3 811A TUBE NEW Production - Image 1 of 3

    2 Pieces UX4 CERAMIC BASE SKT FOR 300B 2A3 811A TUBE NEW Production

    Brand new · Unbranded
    £8.00
    £5.00 P&P
    Click & Collect
    103 sold
    ⁣C⁣P⁣ ⁣4⁣S⁣⁣⁣ ⁣0⁣⁣P⁣ ⁣G⁣⁣E⁣⁣⁣ ⁣⁣⁣⁣R⁣⁣⁣B⁣ ⁣A⁣
  • Psvane Acme 300b Tubes - Matched Pair - Image 1 of 4

    Psvane Acme 300b Tubes - Matched Pair

    Pre-owned · Psvane
    £600.00
    or Best Offer
    Free postage
    Click & Collect
    ⁣⁣E⁣T⁣ ⁣⁣F⁣⁣⁣8⁣⁣ ⁣N⁣B⁣ ⁣Y⁣7⁣ ⁣⁣⁣⁣⁣6⁣N⁣ ⁣⁣I⁣⁣
  • 2pcs Matched LINLAI Elite Series Vacuum Tube E-300B/2A3/6SN7/101D/845/211/274B - Image 1 of 1

    2pcs Matched LINLAI Elite Series Vacuum Tube E-300B/2A3/6SN7/101D/845/211/274B

    Brand new
    £371.30 to £657.06
    Was: £439.00was - £439.00
    Free postage
    ⁣⁣0⁣⁣2⁣ ⁣3⁣O⁣ ⁣2⁣⁣⁣Q⁣ ⁣⁣⁣T⁣⁣8⁣⁣ ⁣J⁣⁣U⁣⁣⁣⁣⁣
  • FEIYUE AMP Golden Voice GV 4300B Vacuum Tube Replaces 300B WE300B 300BN 300BT 30 - Image 1 of 4

    FEIYUE AMP Golden Voice GV 4300B Vacuum Tube Replaces 300B WE300B 300BN 300BT 30

    Brand new
    £97.99 to £358.99
    Free postage
    S⁣p⁣2⁣Q⁣ ⁣N⁣N⁣ ⁣H⁣o⁣B⁣n⁣ ⁣s⁣o⁣I⁣3⁣ ⁣r⁣J⁣O⁣ ⁣U⁣е⁣d⁣⁣⁣⁣
  • TJ 300B/n Triode Valve Tube Made in China - Image 1 of 4

    TJ 300B/n Triode Valve Tube Made in China

    Pre-owned
    £190.00
    or Best Offer
    £3.39 P&P
    Click & Collect
    M⁣S⁣Q⁣ ⁣p⁣o⁣n⁣s⁣o⁣r⁣6⁣P⁣е⁣ ⁣J⁣Z⁣ ⁣d⁣⁣⁣⁣⁣⁣O⁣⁣O⁣⁣⁣
  • 300B-98 PSVANE Triode Vacuum Tube Valve | UK Supplier | FREE UK Del | NEW - Image 1 of 1

    300B-98 PSVANE Triode Vacuum Tube Valve | UK Supplier | FREE UK Del | NEW

    Brand new · Psvane
    £85.00
    (£85.00/Unit)
    or Best Offer
    £5.00 P&P
    Click & Collect
    6 watching
    3⁣S⁣⁣⁣ ⁣⁣7⁣Y⁣⁣ ⁣3⁣⁣Q⁣ ⁣⁣⁣K⁣Q⁣ ⁣Y⁣P⁣ ⁣6⁣⁣⁣ ⁣⁣⁣
  • 1 Matched Pair PSVANE 300B-Z TREASURE Collector Edition Vacuum Tubes 300B - Image 1 of 4

    1 Matched Pair PSVANE 300B-Z TREASURE Collector Edition Vacuum Tubes 300B

    Brand new · Psvane
    £191.00
    Free postage
    Only 1 left.
    ⁣⁣K⁣⁣⁣⁣⁣⁣⁣J⁣ ⁣G⁣V⁣⁣ ⁣E⁣⁣⁣D⁣ ⁣X⁣⁣6⁣ ⁣V⁣⁣6⁣⁣
  • 300B GOLD x2 ELECTRO HARMONIX Directly Heated Triode MATCHED PAIR. Icon Audio - Image 1 of 4

    300B GOLD x2 ELECTRO HARMONIX Directly Heated Triode MATCHED PAIR. Icon Audio

    Brand new · Electro-Harmonix
    £199.95
    £13.95 P&P
    9 watching
    A⁣⁣5⁣⁣ ⁣⁣K⁣⁣U⁣⁣ ⁣⁣⁣L⁣9⁣ ⁣J⁣3⁣⁣⁣ ⁣⁣⁣I⁣1⁣⁣⁣ ⁣
  • Defective-HiFi Mono 300B Valve Tube Amplifier Split Class A Single-ended Amp - Image 1 of 4

    Defective-HiFi Mono 300B Valve Tube Amplifier Split Class A Single-ended Amp

    Parts only · Douk Audio
    £569.99
    (£285.00/Unit)
    Free postage
    Click & Collect
    7 watching
    C⁣⁣N⁣ ⁣⁣⁣D⁣H⁣ ⁣0⁣Q⁣⁣ ⁣⁣⁣⁣⁣⁣⁣V⁣⁣C⁣ ⁣⁣J⁣⁣N⁣ ⁣
  • 4-20pcs Vacuum Tube Silicone Damper Ring 12AX7/KT88/300B/EL34/6SN7/2A3/6550/6Z4 - Image 1 of 2

    4-20pcs Vacuum Tube Silicone Damper Ring 12AX7/KT88/300B/EL34/6SN7/2A3/6550/6Z4

    Brand new
    £3.71 to £14.52
    Free postage
    39 sold
    ⁣S⁣⁣⁣⁣Z⁣ ⁣6⁣A⁣ ⁣⁣⁣1⁣⁣⁣0⁣ ⁣X⁣8⁣ ⁣⁣F⁣9⁣⁣⁣⁣⁣⁣
  • 300B Billington Gold Special. Matched pair. supplied in a gold original box . - Image 1 of 3

    300B Billington Gold Special. Matched pair. supplied in a gold original box .

    £200.00
    £7.50 P&P
    ⁣1⁣A⁣⁣ ⁣⁣G⁣⁣⁣⁣U⁣⁣⁣⁣⁣⁣ ⁣⁣⁣R⁣Z⁣ ⁣⁣⁣⁣⁣⁣1⁣
  • HiFi 300B Valve Tube Power Amplifier Board Stereo Audio Amp Module DIY KIT 7W*2 - Image 1 of 4

    HiFi 300B Valve Tube Power Amplifier Board Stereo Audio Amp Module DIY KIT 7W*2

    Brand new · Douk Audio
    £159.99
    (£159.99/Unit)
    Free postage
    174 watching
    B⁣⁣Y⁣⁣⁣⁣ ⁣H⁣⁣⁣D⁣⁣⁣ ⁣N⁣V⁣ ⁣⁣⁣L⁣⁣⁣⁣G⁣⁣⁣⁣ ⁣
  • AMPLITREX TUBE TEST SERVICE 805, 845, 211, VT-4-C, Western Electric 242-C 300B - Image 1 of 4

    AMPLITREX TUBE TEST SERVICE 805, 845, 211, VT-4-C, Western Electric 242-C 300B

    £79.96
    £30.53 P&P
    32 watching
    Q⁣Y⁣⁣ ⁣⁣⁣⁣⁣⁣⁣⁣9⁣5⁣⁣ ⁣⁣7⁣X⁣⁣⁣ ⁣J⁣⁣J⁣ ⁣Y⁣D⁣ ⁣
  • Matched Pair Svetlana 300B tubes, NOS from 1998 - Image 1 of 4

    Matched Pair Svetlana 300B tubes, NOS from 1998

    New (other) · Svetlana
    £517.78
    or Best Offer
    £51.81 P&P
    16 watching
    2⁣B⁣ ⁣⁣⁣⁣⁣K⁣X⁣ ⁣⁣M⁣P⁣⁣ ⁣⁣L⁣0⁣ ⁣⁣⁣⁣⁣⁣N⁣⁣N⁣ ⁣
  • GD 300B super 4300A Vacuum tube pair In Excellent Working Condition - Image 1 of 4

    GD 300B super 4300A Vacuum tube pair In Excellent Working Condition

    Pre-owned
    £333.33
    £22.22 P&P
    I⁣⁣4⁣⁣⁣ ⁣4⁣⁣A⁣ ⁣⁣⁣S⁣P⁣ ⁣L⁣⁣⁣⁣Z⁣ ⁣K⁣⁣O⁣⁣⁣ ⁣⁣
  • 4 Pin UX4 Ceramic Tubes Socket for 2A3, 300B, etc. With plated Brass contacts - Image 1 of 1

    4 Pin UX4 Ceramic Tubes Socket for 2A3, 300B, etc. With plated Brass contacts

    £6.00
    £4.75 P&P
    Click & Collect
    33 sold
    G⁣⁣⁣⁣⁣⁣⁣F⁣ ⁣⁣Z⁣⁣1⁣ ⁣S⁣⁣⁣⁣⁣⁣P⁣⁣⁣ ⁣⁣⁣Q⁣X⁣
  • 1 Matched Pair PSVANE COSSOR Series 300B NEW Design Vacuum Tubes - Image 1 of 3

    1 Matched Pair PSVANE COSSOR Series 300B NEW Design Vacuum Tubes

    Brand new · Psvane
    £263.99
    Free postage
    ⁣⁣⁣⁣V⁣8⁣ ⁣⁣⁣⁣⁣⁣⁣⁣8⁣3⁣ ⁣4⁣⁣⁣Y⁣⁣⁣ ⁣U⁣⁣⁣O⁣
  • Last Sophia Electric mesh plate 274B in Western WE-specs for tube amplifier 300B - Image 1 of 2

    Last Sophia Electric mesh plate 274B in Western WE-specs for tube amplifier 300B

    Brand new · Sophia Electric
    £259.25
    or Best Offer
    £26.46 P&P
    ⁣Z⁣G⁣ ⁣⁣⁣A⁣⁣⁣6⁣ ⁣⁣H⁣O⁣⁣⁣⁣ ⁣T⁣C⁣ ⁣⁣⁣4⁣Y⁣⁣ ⁣B⁣
  • 1pcs new TJ Fullmusic Vacuum Tube 300B/n Mesh Plate Vintage HIFI AMP DIY - Image 1 of 3

    1pcs new TJ Fullmusic Vacuum Tube 300B/n Mesh Plate Vintage HIFI AMP DIY

    Brand new · Unbranded
    £157.97
    or Best Offer
    Free postage
    0⁣S⁣4⁣ ⁣p⁣o⁣n⁣s⁣o⁣r⁣е⁣M⁣G⁣d⁣ ⁣N⁣⁣1⁣⁣ ⁣H⁣6⁣⁣⁣ ⁣5⁣⁣8⁣
  • HiFi 300b Tube Amplifier Brand New Never Used - Image 1 of 4

    HiFi 300b Tube Amplifier Brand New Never Used

    Brand new · Douk Audio
    £669.68
    or Best Offer
    Collection in person
    S⁣р⁣o⁣n⁣s⁣o⁣A⁣1⁣ ⁣r⁣Y⁣e⁣2⁣ ⁣R⁣R⁣d⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣
  • New For Guiguang 4300B Tube 300B matched pair - Image 1 of 4

    New For Guiguang 4300B Tube 300B matched pair

    Brand new · Unbranded
    £205.73
    Free postage
    Z⁣S⁣p⁣H⁣o⁣n⁣ѕ⁣ ⁣V⁣Z⁣o⁣r⁣e⁣d⁣⁣ ⁣4⁣⁣9⁣⁣⁣ ⁣⁣3⁣⁣2⁣⁣⁣
  • (2) JJ Electronic Factory Platinum Matched 300B Triode Tubes - Image 1 of 1

    (2) JJ Electronic Factory Platinum Matched 300B Triode Tubes

    Brand new · JJ Electronic
    £295.56
    £49.53 P&P
    Only 1 left.
    Ѕ⁣K⁣V⁣p⁣o⁣n⁣ ⁣I⁣s⁣5⁣o⁣r⁣ ⁣e⁣H⁣Z⁣ ⁣H⁣d⁣⁣Z⁣⁣ ⁣K⁣V⁣ ⁣⁣⁣
  • 300B SE tube amplifier * No NFB * Max output 9W/channel/8ohm - Image 1 of 4

    300B SE tube amplifier * No NFB * Max output 9W/channel/8ohm

    Pre-owned
    £2,592.59
    £259.26 P&P
    14 watching
    ⁣⁣3⁣⁣B⁣ ⁣R⁣8⁣⁣⁣ ⁣S⁣V⁣ ⁣2⁣⁣⁣⁣⁣7⁣ ⁣V⁣⁣Q⁣⁣ ⁣⁣Y⁣
  • 4 Pin UX4 Chassis Mount Ceramic Valve Tubes Socket for 2A3, 300B, etc. - Image 1 of 1

    4 Pin UX4 Chassis Mount Ceramic Valve Tubes Socket for 2A3, 300B, etc.

    £6.50
    £5.00 P&P
    Click & Collect
    71 sold
    ⁣E⁣A⁣⁣ ⁣S⁣6⁣ ⁣X⁣N⁣ ⁣6⁣Y⁣⁣⁣ ⁣⁣⁣⁣X⁣⁣⁣N⁣ ⁣5⁣⁣⁣⁣
  • Factory Matched Pair Electron Tube 300B-C Valve Tube #2 - Image 1 of 4

    Factory Matched Pair Electron Tube 300B-C Valve Tube #2

    £208.68
    £3.94 P&P
    K⁣⁣⁣D⁣⁣ ⁣0⁣⁣⁣C⁣ ⁣⁣⁣⁣⁣C⁣J⁣ ⁣⁣L⁣K⁣⁣ ⁣⁣⁣⁣V⁣B⁣
  • Elekit 300B 2A3 Single Power Amplifier Kit TU-8900 Vacuum tube not included New - Image 1 of 4

    Elekit 300B 2A3 Single Power Amplifier Kit TU-8900 Vacuum tube not included New

    Brand new
    £922.47
    Free postage
    ⁣⁣⁣H⁣⁣⁣⁣⁣⁣M⁣ ⁣⁣⁣T⁣⁣⁣8⁣⁣ ⁣Z⁣⁣2⁣ ⁣⁣B⁣G⁣ ⁣N⁣
  • Matched pair Golden Dragon 4-300BC 300B power tube triode electron valve - Image 1 of 4

    Matched pair Golden Dragon 4-300BC 300B power tube triode electron valve

    Brand new
    £320.00
    or Best Offer
    Free postage
    Click & Collect
    2 watching
    ⁣⁣9⁣⁣O⁣⁣⁣⁣ ⁣⁣⁣X⁣⁣U⁣ ⁣S⁣⁣⁣A⁣⁣ ⁣⁣⁣⁣O⁣U⁣ ⁣6⁣
  • ONE (single tube, not pair) U.S made, WE 300B Tube. New in Box. B Stock - Image 1 of 4

    ONE (single tube, not pair) U.S made, WE 300B Tube. New in Box. B Stock

    Brand new · Western Electric
    £222.22
    or Best Offer
    £16.41 P&P
    30 watching
    ⁣T⁣⁣A⁣ ⁣⁣⁣⁣V⁣B⁣⁣⁣ ⁣⁣⁣I⁣Z⁣ ⁣8⁣G⁣ ⁣R⁣⁣N⁣ ⁣⁣N⁣⁣
  • 1 Matched pair PSVANE Acme A300B A805 A274B A211 A845 A2A3 300B 805 5AR4 211 845 - Image 1 of 1

    1 Matched pair PSVANE Acme A300B A805 A274B A211 A845 A2A3 300B 805 5AR4 211 845

    Brand new · Psvane
    £425.59 to £672.59
    £1.97 P&P
    R⁣S⁣p⁣F⁣о⁣ ⁣W⁣n⁣s⁣o⁣E⁣ ⁣r⁣e⁣L⁣9⁣ ⁣d⁣7⁣⁣T⁣ ⁣⁣X⁣Q⁣ ⁣⁣⁣
  • New TJ Fullmusic Vacuum Tube 300B/n Mesh Plate Vintage HIFI AMP DIY - Image 1 of 3

    New TJ Fullmusic Vacuum Tube 300B/n Mesh Plate Vintage HIFI AMP DIY

    Brand new · Unbranded
    £475.43
    Free postage
    V⁣4⁣S⁣p⁣ ⁣o⁣8⁣n⁣V⁣s⁣o⁣ ⁣r⁣е⁣8⁣d⁣C⁣ ⁣Q⁣⁣⁣M⁣ ⁣⁣⁣⁣2⁣Z⁣
  • 2pcs Matched PSVANE 300B-Z TREASURE Collector Edition Vacuum Tubes 300B - Image 1 of 4

    2pcs Matched PSVANE 300B-Z TREASURE Collector Edition Vacuum Tubes 300B

    Brand new · Psvane
    £179.54
    Was: £191.00was - £191.00
    Free postage
    Only 1 left.
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  • Matched Pair Svetlana 300B tubes, NOS from 1998 - Image 1 of 4

    Matched Pair Svetlana 300B tubes, NOS from 1998

    £546.36
    or Best Offer
    £52.07 P&P
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  • 300B COSSOR LOGO WITH ORIGINAL BOX NOS TUBE VALVE - Image 1 of 2

    300B COSSOR LOGO WITH ORIGINAL BOX NOS TUBE VALVE

    £95.00
    £5.50 P&P
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  • TWO Sovtek 300B Vacuum Tubes / 1990's Russian Federation/ Gm&mA Tested/Reflector - Image 1 of 4

    TWO Sovtek 300B Vacuum Tubes / 1990's Russian Federation/ Gm&mA Tested/Reflector

    Pre-owned · Sovtek
    £273.33
    or Best Offer
    £6.67 P&P
    W⁣Q⁣⁣⁣⁣ ⁣⁣X⁣⁣⁣7⁣⁣⁣ ⁣⁣X⁣5⁣⁣ ⁣⁣G⁣⁣⁣W⁣⁣ ⁣⁣⁣
  • New 2PCs PSVANE 300B-N HiFi Vacuum Tube Directly-Heated Cathode Triode 300B - Image 1 of 4

    New 2PCs PSVANE 300B-N HiFi Vacuum Tube Directly-Heated Cathode Triode 300B

    Brand new · Psvane
    £156.99
    or Best Offer
    £10.99 P&P
    35 sold
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  • New TAKATSUKI Vacuum Tube TA-300B matched pair / Ships from Japan - Image 1 of 4

    New TAKATSUKI Vacuum Tube TA-300B matched pair / Ships from Japan

    Brand new
    £1,340.74
    Free postage
    Only 1 left.
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  • Sophia Electric Aqua II 274B rectifier 4 Western 300B 2A3 6SN7 5U4 tube amplifie - Image 1 of 2

    Sophia Electric Aqua II 274B rectifier 4 Western 300B 2A3 6SN7 5U4 tube amplifie

    Brand new · Sophia Electric
    £222.21
    £50.07 P&P
    52 watching
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  • 4 Pin Black Plastic NOS High Quality USA Made Tube Socket For 2A3, 300B,.. - Image 1 of 2

    4 Pin Black Plastic NOS High Quality USA Made Tube Socket For 2A3, 300B,..

    £40.00
    Free postage
    Click & Collect
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  • Western Electric 300B Matched Pair of Vacuum Tubes 1988 USA Rare Includes Box - Image 1 of 4

    Western Electric 300B Matched Pair of Vacuum Tubes 1988 USA Rare Includes Box

    Pre-owned · Western Electric
    £2,281.48
    or Best Offer
    Free postage
    13 watching
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  • 300B PSVANE - 6 PIECES - LOOKS NEW TESTS 60 - 80% EMISSION USED TUBE VALVE - Image 1 of 2

    300B PSVANE - 6 PIECES - LOOKS NEW TESTS 60 - 80% EMISSION USED TUBE VALVE

    Pre-owned · Psvane
    £270.00
    £10.00 P&P
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  • Tube Type 262B Engraved Base Western Electric Test New Fine Driver Fr 350B 300B - Image 1 of 4

    Tube Type 262B Engraved Base Western Electric Test New Fine Driver Fr 350B 300B

    Pre-owned · Western Electric
    £503.70
    £25.93 P&P
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  • One Pair Sophia Electric Princess 300B/n tubes - Image 1 of 4

    One Pair Sophia Electric Princess 300B/n tubes

    Pre-owned · Sophia Electric
    £351.85
    or Best Offer
    £34.32 P&P
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  • 4pin Tube Socket Ceramics,for Vacuum Tube,Tinning plate for 300B Tube 2pcs - Image 1 of 4

    4pin Tube Socket Ceramics,for Vacuum Tube,Tinning plate for 300B Tube 2pcs

    Brand new · uxcell
    £7.25
    or Best Offer
    Free postage
    ⁣⁣⁣K⁣⁣⁣⁣⁣O⁣ ⁣⁣L⁣⁣8⁣ ⁣2⁣E⁣⁣⁣ ⁣X⁣⁣⁣8⁣⁣ ⁣K⁣⁣
  • Western Electric 300B Matched Pair Vacuum Tubes 2021 Reissue 2022 Production NIB - Image 1 of 4

    Western Electric 300B Matched Pair Vacuum Tubes 2021 Reissue 2022 Production NIB

    £1,495.21
    Free postage
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  • 1 Matched pair premium Shuguang Treasure 300B-Z Vacuum Tube Replace 300B WE300B - Image 1 of 2

    1 Matched pair premium Shuguang Treasure 300B-Z Vacuum Tube Replace 300B WE300B

    Brand new
    £245.99
    or Best Offer
    £25.99 P&P
    17 watching
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  • ELROG ER300B Vacuum Tubes (Matched Pair) - Image 1 of 4

    ELROG ER300B Vacuum Tubes (Matched Pair)

    Pre-owned
    £1,526.48
    or Best Offer
    £12.50 P&P
    Est. delivery Fri, Aug 15
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  • 2 pcs Matched Pair Psvane Hifi 300B Vacuum Tubes Power tube for AMP DIY - Image 1 of 2

    2 pcs Matched Pair Psvane Hifi 300B Vacuum Tubes Power tube for AMP DIY

    Brand new
    £131.99
    or Best Offer
    £19.19 P&P
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  • 300B 98 SHUGUANG MATCHED PAIR AVO TESTED From Icon Audio - Image 1 of 4

    300B 98 SHUGUANG MATCHED PAIR AVO TESTED From Icon Audio

    Brand new
    £199.00
    £9.95 P&P
    Click & Collect
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  • New For Guiguang 4300B Tube 300B matched pair - Image 1 of 4

    New For Guiguang 4300B Tube 300B matched pair

    Brand new · Unbranded
    £195.94
    Free postage
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  • GV Golden Voice 300B Plus matched quad 4 vacuum tubes - Image 1 of 4

    GV Golden Voice 300B Plus matched quad 4 vacuum tubes

    Brand new · Quad
    £387.53
    or Best Offer
    Free postage
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